console.log(isNaN(NaN));
console.log(parseInt(`2342`, 12));
console.log(`hello`.indexOf(`l`));
console.log(`Midget`.includes(`id`, 1));
console.log(`hello`.slice(1, 3));
console.log(`widget`.substr(1, 4));
console.log(`widget`.substring(1, 4));
console.log(`a`.codePointAt(0));
console.log(String.fromCodePoint(69));
console.log();
